A radical Islamic activist and lawyer in the U.K. has called on Muslims worldwide to burn U.S. flags outside American embassies on Sept. 11, a “direct retaliation” against a Florida church’s plan to burn Qurans on the same day.

Anjem Choudary, former leader of the banned hardline Islamic group Islam4UK, told CBS News in London he was calling for, “an international burn the Stars and Stripes day” on the anniversary of the 9/11 terrorist attacks.

Choudary, who regularly organizes small demonstrations in Britain calling for the implementation of Islamic law, was the first public figure — and a likely one — to call for retaliation against Gainesville, Fla. Reverend Terry Jones’ plans to burn at least 100 Qurans.

Hundreds of angry Afghans burned an American flag and chanted “Death to the Christians” on Thursday to protest plans by a small American church to torch copies of the Muslim holy book on the anniversary of the Sept. 11 terror attacks.

Local officials in Mahmud Raqi, the capital of the Kapisa province some 100 kilometers (60 miles) northeast of Kabul, estimated that up to 4,000 people took part in the protest. But NATO spokesman James Judge said the protest numbered between 500 to 700 people.

Yawn. Every day is a Western flag-burning day somewhere in the Muslim world for every reason under the sun (see <a href="http://michellemalkin.com/2005/06/13/desecration-of-the-day/here" hereherehereherehere and here, for starters).